In the week since he emerged from coronavirus isolation, Trump has demonstrated new determination to minimize the threat of the virus that has killed more than 215,000 Americans and complicated his chances of winning another four years in the White House. “The light at the end of the tunnel is near. We are rounding the turn,” Trump told supporters Friday at an event in Fort Myers, Florida, one of many moments during a week of campaigning when the president tried to play down the virus threat. “Don’t listen to the cynics and angry partisans and pessimists.”